Jig special for machining shaft core assembly
By designing a special fixture for processing shaft core components including shell, middle-layer structure, limiting block, pressing rod, fixed structure and rotating structure, the problem of difficulty in designing high-precision universal type fixtures in the prior art is solved, and high-precision clamping and rotation of shaft core components is achieved, adapting to shaft core components of different diameters, and using flexible use.
Patent Information
- Application Number
- CN202420892383.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-26
AI Technical Summary
It is difficult to design a universal type fixture that can meet the requirements of high precision for machining shaft core components.
A special fixture for processing shaft core assembly is designed, including a shell, a middle-layer structure, a limiting block, a press rod, a fixed structure and a rotating structure. High-precision clamping and rotation of the shaft core assembly is achieved through fastener connection and gear transmission.
High-precision clamping and processing of shaft core components is realized, can adapt to shaft core components of different diameters, and is flexible to use and easy to use with other fixtures.
Smart Images
Figure CN222791745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shaft core component processing, in particular to a special tool for shaft core component processing. Background Art
[0002] The shaft core, also known as a precision shaft or micro shaft, is used to support rotating parts. It only bears bending moments but does not transmit torque. It is a very important structure in the machinery industry. It is usually a cylindrical bar or tube. It has high requirements for strength and dimensional accuracy. Therefore, the production and processing of the shaft core is particularly important. Due to the special shape, it is usually processed by machine tools, grinders and other equipment. It is necessary to design a universal fixture based on this equipment to meet high-precision requirements. Utility Model Content
[0003] The purpose of the utility model is to provide a special jig for machining a shaft core component to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special jig for processing a shaft core component, comprising a shell, characterized in that: a shell inner cavity is opened in the shell, a middle layer structure is arranged inside the shell inner cavity, a limit block is fixedly connected to the top of the middle layer structure, a fixing groove is opened in the middle of the limit block, a pressure rod is slidably installed inside the fixing groove, a fixed structure is arranged on the right side of the pressure rod, the fixed structure and the pressure rod are connected by fasteners, a rotating structure is arranged at the bottom of the middle layer structure, a sliding groove is opened in the top of the rotating structure, a rotating structure gear is fixedly connected to the outside of the rotating structure, a square hole is arranged on the top of the shell, and a rotating gear is arranged at the bottom of the square hole.
[0005] Preferably, the pressure rod is L-shaped, and passes through the fixing groove and the sliding groove.
[0006] Preferably, the rotating gear is meshed with the rotating structure gear.
[0007] Preferably, the middle layer structure is fixed relative to the outer shell, and the rotating structure can rotate about the central axis of the middle layer structure.
[0008] Preferably, the fixing groove and the sliding groove form an angle.
[0009] Preferably, the contact surface between the fixing structure and the shaft core is in an arc shape.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The shaft core assembly is processed with a special fixture. The square hole is rotated to drive the rotating gear to rotate. The transmission gear engages with the rotating structure gear, thereby driving the entire rotating structure to rotate. The sliding groove moves in one direction, pushing the pressure rod to move toward the center of the rotating structure. The pressure rod is extended to the appropriate position to clamp the shaft core assembly to complete the clamping.
[0012] 2. The shaft core assembly is processed with a special fixture. The fixing structure and the pressure rod are connected by fasteners. Different fixing structures can be replaced for shaft core assemblies of different diameters. It is easy to disassemble and can also be used in conjunction with other fixtures, making it more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the rotating structure of the utility model;
[0016] Figure 4 It is a cross-sectional view of the structure of the utility model.
[0017] In the figure: 1. outer shell; 2. middle structure; 3. rotating structure; 4. limit block; 5. pressure rod; 6. fixed structure; 7. fastener; 8. fixed groove; 9. sliding groove; 10. rotating structure gear; 11. square hole; 12. rotating gear; 13. inner cavity of the outer shell. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] Example: See Figure 1 The utility model provides a technical solution: a special jig for processing a shaft core component.
[0020] Among them, the shell 1 is provided with a shell cavity 13, and a middle-layer structure 2 is arranged inside the shell cavity 13. The top of the middle-layer structure 2 is fixedly connected to a limit block 4, and a fixing groove 8 is provided in the middle of the limit block 4. A pressure rod 5 is slidably installed inside the fixing groove 8, and a fixed structure 6 is provided on the right side of the pressure rod 5. The fixed structure 6 and the pressure rod 5 are connected by a fastener 7. A rotating structure 3 is arranged at the bottom of the middle-layer structure 2, a sliding groove 9 is provided in the top of the rotating structure 3, and a rotating structure gear 10 is fixedly connected to the outside of the rotating structure 3. A square hole 11 is provided on the top of the shell 1, and a rotating gear 12 is provided at the bottom of the square hole 11.
[0021] In this embodiment,
[0022] The pressing rod 5 is L-shaped, and passes through the fixing groove 8 and the sliding groove 9 .
[0023] In this embodiment, one end of the pressure rod 5 is locked with the fixing structure 6 through a fastener 7, and the other end passes through the limit block 4, the fixing groove 8 and the sliding groove 9 in sequence.
[0024] The rotating gear 12 and the rotating structure gear 10 are meshed.
[0025] In this embodiment, the two gears are meshed with each other, and when the square hole 11 is rotated, the rotating structure 3 can be driven to rotate.
[0026] The middle structure 2 is fixed relative to the outer shell 1 , and the rotating structure 3 can rotate around the central axis of the middle structure 2 .
[0027] In this embodiment, the rotating structure 3 rotates, and the middle structure 2 remains stationary, thereby driving the fixing groove 8 and the sliding groove 9 .
[0028] The fixing groove 8 and the sliding groove 9 are at an angle.
[0029] In this embodiment, due to the misalignment between the fixed groove 8 and the sliding groove 9 , the sliding groove 9 rotates to push the pressing rod 7 forward or backward in the fixed groove 8 .
[0030] The contact surface between the fixing structure 6 and the shaft core assembly is in an arc shape.
[0031] In this embodiment, the arc shape facilitates clamping and prevents excessive force from causing indentations on the surface of the shaft core component.
[0032] Working principle: Use the handle to rotate the square hole 11 to drive the rotating gear 12 to rotate around the axis. The transmission gear 12 engages the rotating structure gear 10, thereby driving the entire rotating structure 3 to rotate. The sliding groove 9 moves in one direction. Since the pressure rod 5 in the groove is fixed by the fixed groove 8 and the limit block 4 and cannot move left and right, the sliding groove 9 pushes the pressure rod to move toward the center of the rotating structure 3. Place the shaft core assembly to be clamped in the center of the fixture, rotate the square hole 12, extend the pressure rod to the appropriate position to clamp the shaft core assembly, and complete the clamping.
[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A special jig for machining a shaft core component, comprising a housing (1), characterized in that: The shell (1) is provided with a shell cavity (13), and a middle structure (2) is arranged inside the shell cavity (13). The top of the middle structure (2) is fixedly connected to a limit block (4), and a fixing groove (8) is provided in the middle of the limit block (4). A pressure rod (5) is slidably installed inside the fixing groove (8). A fixing structure (6) is provided on the right side of the pressure rod (5), and the fixing structure (6) and the pressure rod (5) are connected by a fastener (7). A rotating structure (3) is arranged at the bottom of the middle structure (2), and a sliding groove (9) is provided in the top of the rotating structure (3). The outer side of the rotating structure (3) is fixedly connected to a rotating structure gear (10). A square hole (11) is provided at the top of the shell (1), and a rotating gear (12) is provided at the bottom of the square hole (11).
2. The special tool for machining a shaft core assembly according to claim 1, characterized in that: The pressure rod (5) is L-shaped, and passes through the fixing groove (8) and the sliding groove (9).
3. The special jig for machining a shaft core assembly according to claim 1, characterized in that: The rotating gear (12) is meshed with the rotating structural gear (10).
4. The special tool for machining a shaft core assembly according to claim 1, characterized in that: The middle structure (2) is fixed relative to the outer shell (1), and the rotating structure (3) can rotate about the central axis of the middle structure (2).
5. The special tool for machining a shaft core assembly according to claim 1, characterized in that: The fixing groove (8) and the sliding groove (9) are at an angle.
6. The special tool for machining a shaft core assembly according to claim 1, characterized in that: The contact surface between the fixing structure (6) and the shaft core is in an arc shape.